Experiment: use Python scripting for CI

.github/workflows/python_build.yaml

@@ -10,9 +10,9 @@ jobs:
       - uses: actions/checkout@v4
       - uses: actions/setup-python@v4
       - name: install dev requirements
-        run: python -m pip install -r requirements-dev.txt
+        run: python scripts/install-dev-reqs.py
       - name: build sdist
-        run: python -m build --sdist && twine check ./dist/*
+        run: python scripts/build-sdist.py
       - name: upload sdist
         uses: actions/upload-artifact@v4
         with:
@@ -58,11 +58,6 @@ jobs:
         with:
           name: sdist
           path: ./dist/
-      - uses: tj-actions/glob@v20
-        # FIXME? use a more programmatic or integrated solution here
-        id: sdist_glob
-        with:
-          files: ./dist/*
 
       # Used to host cibuildwheel
       - uses: actions/setup-python@v3
@@ -71,11 +66,11 @@ jobs:
         uses: docker/setup-qemu-action@v3
 
       - name: Install cibuildwheel
-        run: python -m pip install cibuildwheel==2.16.3
+        run: python scripts/_run-cibw.py install
 
       - name: Build wheels
         # https://github.com/pypa/cibuildwheel/issues/173#issuecomment-1501236916
-        run: python -m cibuildwheel ${{ steps.sdist_glob.outputs.paths }} --output-dir ./dist
+        run: python scripts/_run-cibw.py build dist/
         env:
           CIBW_BUILD: ${{ matrix.cibw_build }}
           CIBW_ARCHS: ${{ matrix.cibw_archs }}

requirements-dev.txt

@@ -1,6 +1,7 @@
 cffi >= 1.14.5
 setuptools >= 49.5.0
-wheel >= 0.30.0
-# Beyond "build" requirements
+wheel >= 0.28.0
+
+# Beyond nominal "build" requirements
 build >= 0.6.0
 twine >= 1.15.0

scripts/_run-cibw.py

@@ -0,0 +1,24 @@
+#!/usr/bin/env python3
+import os
+from pathlib import Path
+import subprocess
+import sys
+
+CIBW_VER = os.environ.get('_CIBW_VER', '2.16.3')
+
+if sys.argv[1] == 'install':
+	subprocess.check_call([
+		sys.executable, '-m', 'pip',
+		'install', f'cibuildwheel == {CIBW_VER}'
+	])
+
+elif sys.argv[1] == 'build':
+	target = Path(sys.argv[2])
+	subprocess.check_call([
+		sys.executable, '-m', 'cibuildwheel',
+		*target.glob('*'),
+		'--output-dir', target
+	])
+
+else:
+	raise RuntimeError()

scripts/build-sdist.py

@@ -0,0 +1,14 @@
+#!/usr/bin/env python3
+from pathlib import Path
+import subprocess
+import sys
+
+subprocess.check_call([
+	sys.executable, '-m', 'build',
+	'--sdist'
+)]
+
+subprocess.check_call([
+	sys.executable, '-m', 'twine',
+	'check', *Path('dist').glob('*')
+])

scripts/install-dev-reqs.py

@@ -0,0 +1,10 @@
+#!/usr/bin/env python3
+from pathlib import Path
+import subprocess
+import sys
+
+subprocess.check_call([
+	sys.executable, '-m', 'pip',
+	'install',
+	'-r', Path(__file__).parent / '..' / 'requirements-dev.txt'
+])